Cyber Resilience

CVE-2023-50440

MediumLPE

Published: 13 December 2023

Published
13 December 2023
Modified
03 June 2025
KEV Added
Patch
CVSS Score v3.1 5.5 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
EPSS Score 0.0012 30.0th percentile
Risk Priority 11 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2023-50440 is a medium-severity Improper Access Control (CWE-284) vulnerability in Primx Zed\!. Its CVSS base score is 5.5 (Medium).

Operationally, ranked at the 30.0th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability details

ZED containers produced by PRIMX ZED! for Windows before Q.2020.3 (ANSSI qualification submission); ZED! for Windows before Q.2021.2 (ANSSI qualification submission); ZONECENTRAL for Windows before Q.2021.2 (ANSSI qualification submission); ZONECENTRAL for Windows before 2023.5; ZEDMAIL for Windows before 2023.5; ZED!…

more

for Windows, Mac, Linux before 2023.5; ZEDFREE for Windows, Mac, Linux before 2023.5; or ZEDPRO for Windows, Mac, Linux before 2023.5 can be modified by an unauthenticated attacker to include a UNC reference so that it could trigger network access to an attacker-controlled computer when opened by the victim.

CWE(s)

Related Threats

No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.

Affected Assets

primx
zed\!
≤ 2023.5 · ≤ 2023.5 · ≤ 2023.5
primx
zedmail
≤ 2023.5
primx
zonecentral
≤ q.2021.2 · 2023.0 — 2023.5

Mitigating Controls

Likely Mitigating Controls AI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

addresses: CWE-284

The access control policy and procedures directly mandate and enforce proper access control mechanisms across the organization.

addresses: CWE-284

Device lock enforces restricted access until re-authentication, directly reducing unauthorized use of active sessions.

addresses: CWE-284

Supervision and review of access control activities directly detects and remediates improper access configurations or usages.

addresses: CWE-284

Explicitly identifying and documenting actions permitted without identification or authentication enforces proper access control boundaries by defining justified exceptions.

addresses: CWE-284

By automatically labeling outputs with security attributes, the control supports attribute-based enforcement and reduces exploitability of improper access control weaknesses.

addresses: CWE-284

Associating and retaining security attributes with data directly supports enforcement of access control decisions across storage, processing, and transmission.

addresses: CWE-284

Requiring prior authorization for each remote access type prevents improper access control over remote connections.

addresses: CWE-284

Requiring authorization of wireless access before allowing connections enforces proper access control for this access method.

References